I found these in Upstate New York, where I believe they have spent the past 120 years or so, as many of the flasks are etched with an "NY".  Some of them also etched with a "K", which I think might indicate that they were very early creations of the Kimble Class Co. of Chicago, established in 1901 I believe, and which specialized in glass tubing and laboratory glass. The style of the graduated measures on their necks varies some among them, together with their very delicate hand-blown forms makes them to my eye super beautiful things, and they seem to be quite rare and precious ones as well.

Individual flasks measure 6 3/8" t x 1 5/16" in diameter each. Carrier: 12" x 8" x 8". Overall good condition, with no chips or cracks whatsoever that I can see. I have not cleaned them--a few have a fair amount of dust or residue inside, and some have numbers or letters written on the glass. There is a very old paper towel sitting underneath them in the tray for cushion--easily removed. The gray painted metal tray shows some rusting and paint loss, which I like, and makes for the perfect carrier and display. I will pack these with much care for shipping.